private void init(Stream stream, GIFFrameUpdatedCallbackMethod frameUpdatedCallback)
{
// set gif frame update callback
this.FrameUpdatedCallback = frameUpdatedCallback;
// decode gif image
var gifDecoder = new GifDecoder();
var image = new ExtendedImage();
gifDecoder.Decode(image, stream);
// add frames and load unity textures
frames = new List <TextureGIFFrame>();
var firstFrame = new TextureGIFFrame(createTexture(image.PixelWidth, image.PixelHeight, image.Pixels), TimeSpan.FromSeconds(image.DelayTime / 100d));
frames.Add(firstFrame);
var lastFrame = firstFrame;
foreach (var frame in image.Frames)
{
var newFrame = new TextureGIFFrame(createTexture(frame.PixelWidth, frame.PixelHeight, frame.Pixels), TimeSpan.FromSeconds(frame.DelayTime / 100d));
frames.Add(newFrame);
if (lastFrame != null)
{
lastFrame.nextFrame = newFrame;
}
lastFrame = newFrame;
}
// set starting image
CurrentFrame = frames[0];
lastFrame.nextFrame = firstFrame;
}
/// <summary>
/// Construct gif from byte array
/// </summary>
/// <param name="data">Image data</param>
/// <param name="frameUpdatedCallback">Called when gif frame texture has updated</param>
public TextureGIF(byte[] data, GIFFrameUpdatedCallbackMethod frameUpdatedCallback)
{
using (var stream = new MemoryStream(data))
{
stream.Position = 0;
init(stream, frameUpdatedCallback);
}
}
/// <summary>
/// Construct gif from byte array
/// </summary>
/// <param name="data">Image data</param>
/// <param name="frameUpdatedCallback">Called when gif frame texture has updated</param>
public TextureGIF(byte[] data, GIFFrameUpdatedCallbackMethod frameUpdatedCallback)
{
using (var stream = new MemoryStream(data))
{
stream.Position = 0;
init(stream, frameUpdatedCallback);
}
}
/// <summary>
/// Construct gif from stream
/// </summary>
/// <param name="stream">Image Stream</param>
/// <param name="frameUpdatedCallback">Called when gif frame texture has updated</param>
public TextureGIF(Stream stream, GIFFrameUpdatedCallbackMethod frameUpdatedCallback)
{
init(stream, frameUpdatedCallback);
}
private void init(Stream stream, GIFFrameUpdatedCallbackMethod frameUpdatedCallback)
{
// set gif frame update callback
this.FrameUpdatedCallback = frameUpdatedCallback;
// decode gif image
var gifDecoder = new GifDecoder();
var image = new ExtendedImage();
gifDecoder.Decode(image, stream);
// add frames and load unity textures
frames = new List<TextureGIFFrame>();
var firstFrame = new TextureGIFFrame(createTexture(image.PixelWidth, image.PixelHeight, image.Pixels), TimeSpan.FromSeconds(image.DelayTime / 100d));
frames.Add(firstFrame);
var lastFrame = firstFrame;
foreach (var frame in image.Frames)
{
var newFrame = new TextureGIFFrame(createTexture(frame.PixelWidth, frame.PixelHeight, frame.Pixels), TimeSpan.FromSeconds(frame.DelayTime / 100d));
frames.Add(newFrame);
if (lastFrame != null) lastFrame.nextFrame = newFrame;
lastFrame = newFrame;
}
// set starting image
CurrentFrame = frames[0];
lastFrame.nextFrame = firstFrame;
}
/// <summary>
/// Construct gif from stream
/// </summary>
/// <param name="stream">Image Stream</param>
/// <param name="frameUpdatedCallback">Called when gif frame texture has updated</param>
public TextureGIF(Stream stream, GIFFrameUpdatedCallbackMethod frameUpdatedCallback)
{
init(stream, frameUpdatedCallback);
}
